If you want to do it the normal/straight forward way, simply say "Do you like me?"
If you think that,s a little too awkward (like me...) you can say, "So... where are we now...?" If they answer with a location, just laugh a little and say "Thats not exactly what I ment... What I mean is, If I were to ask you if you liked me, what would you say?" Or something like that. That way, you aren,t actually asking, but you still get an answer.
Hey Alex, if you,re reading this, the answer is yes, I do like you. And I,m trying SO hard to show you how I really feel.